I try to backup my database with mysqldump and cronjobs.
Well, I added the following command to the crontab of user root:
*/30 * * * * mysqldump -u root -pVERYSECUREPASSWORD --all-databases > /var/www/cloud/dump_komplett.sql &> /dev/null
This works fine so far, but the problem is that the password is set in this command.
So I want to include a .database.cnf file that look like this
[mysqldump]
user=root
password=VERYSECUREPASSWORD
and changed the mysqldump command to
mysqldump --defaults-extra-file="/var/crons/mysql/.database.cnf" --all-databases -u root > /var/www/cloud/dump_komplett.sql
to solve this problem.
But this command fails with the error:
mysqldump: Got error: 1045: Access denied for user 'root'#'localhost' (using password: YES) when trying to connect
I don't know what's wrong.
Here are some commands I also tried:
mysqldump --defaults-extra-file="/var/crons/mysql/.database.cnf" --all-databases > /var/www/cloud/dump_komplett.sql
mysqldump --defaults-file="/var/crons/mysql/.database.cnf" --all-databases > /var/www/cloud/dump_komplett.sql
mysqldump --defaults-file="/var/crons/mysql/.database.cnf" --all-databases -u root > /var/www/cloud/dump_komplett.sql
and .database.cnf contents I also tried:
[client]
user=root
password=VERYSECUREPASSWORD
[mysqldump]
host=localhost
user=root
password=VERYSECUREPASSWORD
[client]
host=localhost
user=root
password=VERYSECUREPASSWORD
I found out that password should be between quotes
[client]
user=root
password="VERYSECUREPASSWORD"
Took me a while to figure out why it didn't work with passwords with lots of non alfanumeric symbols
The user has to be specified in the command and not in the file with the u parameter.
For more details on scheduling cron jobs using mysqldump, check this answer
Related
I need to execute the following sql queries from bash/expect script
what is the preferred approach to run these queries from bash script
# psql ambari -U ambari
Password for user ambari:
psql (9.2.24)
Type "help" for help.
ambari=>
ambari=>
ambari=>
ambari=> select
ambari-> sum(case when ulo = 1 then 1 else 0 end) as ulo_1,
ambari-> sum(case when ulo = 2 then 1 else 0 end) as ulo_2,
.
.
.
for access PostgreSQL we do
psql ambari -U ambari
Password for user ambari:bigdata
and when we run this ( /tmp/file include the bach of the query )
psql -U ambari -f /tmp/file ambari
we get
psql: FATAL: no pg_hba.conf entry for host "[local]", user "ambari", database "ambari", SSL off
I'm using this
dbhost=localhost
dbport=5432
dbuser=user
dbpass=pass
dbname=test
export PGPASSWORD="$dbpass"
dbopts="-h $dbhost -p $dbport -U $dbuser -d $dbname"
Then run sql script from file
psql $dbopts < "$path_to_sql_script"
Or from query var
query="
SELECT 1;
...
"
psql $dbopts <<< "$query"
Also pgpass can be set in special file ~/.pgpass like this
echo "$dbhost:$dbport:$dbname:$dbname:$dbpass" > ~/.pgpass
chmod 600 ~/.pgpass
Use switches -c command or -f filename, ie.:
$ psql -U ambari -c "SELECT ... ;" ambari # > result.file
or:
$ cat file.sql
SELECT
... ;
$ psql -U ambari -f file.sql ambari # > result.file
Probably -f as your query seems lengthy. Use > result.file to store the query result to a file.
As for the password, store following kind of entry to .pgpass file in user's home dir:
$ cat >> ~/.pgpass
#hostname:port:database:username:password
localhost:5432:ambari:ambari:t00M4NY53CR3t5
and set its rights to user's eyes only:
$ chmod 600 ~/.pgpass
Also, consider psql -h hostname if the database is not running in localhost (this needs to reflect in .pgpass entry as well).
I have this command which is only creating statements to re-create the database and schemes, but it's not backing up any of the data:
"C:\Program Files (x86)\MySQL\MySQL Workbench CE 6.0.6\mysqldump.exe" --user=myuser --password=mypassword --host=localhost --port=3306 --result-file="Z:\mysql-backup\backup.%date:~10,4%%date:~7,2%%date:~4,2%.sql" --default-character-set=utf8 --single-transaction=TRUE --databases "wpzb" "wptt"
What am I missing?
With the basic command:
mysqldump -u myuser -pmypassword --databases wpzb watt > dump_file.sql
You should get all the data and schema in one file
It might be best to execute the command for each database separately:
mysqldump -u myuser -pmypassword --default-character-set=utf8 --single-transaction=TRUE wpzb > wpzb_dump_file.sql
This way you have the schema and data for one database in one file!
Since the database is local and on the default port you can just use:
-u myuser -pmypassword
And leave the localhost and port attributes off.
I tested with no-data=true in the my.ini file on Windows and running mysqldump now dumps no data.
my.ini
[client]
no-data=true
backup: # mysqldump -u root -p[root_password] [database_name] > dumpfilename.sql
I want to do an import:
this is my command:
mysql -u root -p axelen > C:\Users\Netlogiq\Desktop\netlogiq_axelen.sql
After that it ask me about the password and after that nothing happens. What am i doing wrong ?
Short Question - short answer. You just have to turn your > to <:
mysql -u root -p axelen < C:\Users\Netlogiq\Desktop\netlogiq_axelen.sql
I recently moved my Ruby on Rails 4 app from Heroku to Linode. Everything has been setup correctly, but I need to populate my database with a file, lets call it movies.sql
I am not very familiar with postgresql command and VPS, so having trouble getting this done. I uploaded it to Dropbox since I saw many SO posts that you can use S3/Dropbox.
I saw different commands like this (unsure how to go about it in my situation):
psql -U postgres -d testdb -f /home/you/file.sql
psql -f file.sql dbname
psql -U username -d myDataBase -a -f myInsertFile
So which is the correct one in my situation and how to run when I SSH in Linode? Thanks
You'll need to get the file onto your server or you'll need to use a different command from your terminal.
If you have the file locally, you can restore without sshing in using the psql command:
psql -h <user#ip_address_of_server> -U <database_username> -d <name_of_the_database> -f local/path/to/your/file.sql
Otherwise, the command is:
psql -U <database_username> -d <name_of_the_database> < remote/path/to/your/file.sql
-U sets the db username, -h sets the host, -d sets the name of the database, and -f tells the command you're restoring from a file.
I have a data base named "mig". it has 10 tables. now i want to create a same database in another system so I am using mysqldump command but it shows error.
I entered command as follows :
mysqldump -u root -p root mig >file.sql;
This is the error i got :
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'mysql
dump -u root -p root mig >file.sql' at line 1
I am getting the same error when I use ,
mysqldump -u root -proot mig >file.sql;
How can i fix this ?
Simply try-
mysqldump -u root mig> file.sql
Edit
mysqldump is not a MySQL command, it is a command line utility. You must call it from your shell command line. I hope you are not calling this from MySQL prompt.
When providing password on the command line you should leave no space after -p.
It should look smth like:
mysqldump -u root -proot mig >file.sql;
You can use some tools like MySQL Workbench or SQLyog to import the dump file.
Free version: https://code.google.com/p/sqlyog/wiki/Downloads
When you execute mysqldump from command line, you must have mysql_home/bin directory in your classpath variable or command-line must be pointing to it.
try using
mysqldump -u root -proot mig >(abs_path)/file.sql;
This works for me on my local. Open Terminal and execute the following code (Make sure your are NOT on the MySQL prompt):
mysqldump -uroot -p mig > file.sql
It will ask you to input the password on the next line, for security the password won't be shown.
If you get Access Denied, means the mysql credentials are wrong (or the user you use don't have the right permissions to generate a dump), so make sure you have a valid username and password. I hope it helps.
mysqldump will not run from mysql cli, you will have to run it from windows command prompt:
mysqldump -u username -p database_name > output_file_name.sql;
If you are getting error on running above command 'mysqldump is not recognized as an internal or external command' then navigate to < MySQL Installation Directory/bin/ > and then run the command.
i have the same problem, my situation was i connect from client in local computer to server in SQL instance of Google. Since i read Sahil Mittal said this is comman utilty, i just put in terminal the same command adding -h parameter.
mysqldump -h ip.del.host -u root -p database_name > database_desired_name.sql